Never dealt with that at any office. I have dealt with Secret Santa and Victorian Gift Exchange (two very different things) in various volunteer groups. Not a fan.
Recommendations:
* A squad of 40K Space Marines … who doesn't want that?
* If the local HS sells a video of their musical or concerts and invite the giftee to share it with the office.
* Some God-awful cubicle decoration chachkas (note: they are all God-Awful)
* Exotic canned food for their holiday meal like haggis, borshch, or Hákarl
* A nice copy of War and Peace. It's a great book, but the odds that someone who wants to read it doesn't have it already are extremely low.
* A rock and water effect terrain kit
* $40 USD worth of designer glitter
… OK … a real one:
* a bottle of cinnamon schnapps and a a bottle of peppermint schnapps so they can Ragnarok in the new year!